From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: apw@canonical.com, arjan@linux.intel.com, fhrbata@redhat.com,
john.johansen@canonical.com, penguin-kernel@I-love.SAKURA.ne.jp,
rientjes@google.com, rusty@rustcorp.com.au, tj@kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 0/6] make request_module() killable
Date: Tue, 14 Feb 2012 17:46:46 +0100 [thread overview]
Message-ID: <20120214164646.GA21154@redhat.com> (raw)
As Tetsuo pointed out, request_module() is very much unfriendly wrt OOM.
It needs "a lot" of time/memory to finish while the caller is blocked in
TASK_UNINTERRUPTIBLE.
Changes:
- improve the comments a bit
- reorder the changes so that 3/6 which changes kABI can be
skipped, to simplify the backporting
- tried to test, seems to work
This series is orthogonal to kmod-avoid-deadlock-by-recursive-kmod-call.patch
(which I still think should be replaced, I'll try to return to this later).
3/6 depends on usermodehelper-use-umh_wait_proc-consistently.patch
Many thanks to Tetsuo for the discussion.
Oleg.
next reply other threads:[~2012-02-14 16:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 16:46 Oleg Nesterov [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-02-14 16:47 [PATCH 0/6] make request_module() killable Oleg Nesterov
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